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Properties of dawsonite conversion film on AZ31 magnesium alloy CHEN Jun, SONG Ying-wei, SHAN Da-yong, HAN En-hou State Key Laboratory for Corrosion and Protection, Institute of Metal Research... was developed to improve the corrosion resistance of AZ31 Mg alloy. The film was prepared by two steps: the AZ31 alloy was first immersed in an Al2(SO4)3 solution venting CO2 gas to form a precursor......
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. The thickness of each galvanized coating, which was measured by STH-1 pachometer, was about 50 μm of which it was composed of 30 μm Fe-Zn alloy layer and 20 μm free zinc layer. After the zinc coatings were... Growth and corrosion behavior of rare earth film on hot-dip galvanized steel LU Jin-tang(卢锦堂), WU Hai-jiang(吴海江), KONG Gang(孔 纲), CHE Chun-shan(车淳山), XU Qiao-yu(许乔瑜) College of Materials......
熔态AZ91D合金在含SO2的保护气氛中的保护膜特征王先飞1,熊守美1(1.北京市清华大学机械工程系汽车安全与节能国家重点实验室)摘 要:采用自制的实验装置,研究了以SO2气体为基的混合气体对熔态AZ91D镁合金的保护行为,运用X射线衍射仪(XRD),扫描电镜(SEM),能谱仪(EDS)及Auger电子能谱仪(AES)分析了形成的表面膜的相组成,微观组织形貌和化学成分,讨论了表面膜的生成过程和保护机理.研究表明:表面膜由MgO和MgS混合组成,厚度为0.5-3.0μm,为两层结构,外层为MgO,内层为MgO与M......
STUDY ON CO-ELECTRODEPOSITION OF Bi-Fe ALLOY FILMS IN ORGANIC BATH G.K.Liu1,Y.X.Tong1,G.R.Li1 (1.School of Chemistry and Chemical Engineering, Zhongshan University, Guangzhou 510275, China) Abstract:The cyclic voltametry and potentiostatic electrolysis was used to investigate the preparation of Bi-Fe alloy films in LiClO4-DMSO (dimethylsulfoxide) system. The effects of several factors......
Formation mechanism of pulse current anodized film on AZ91D Mg alloy QIAN Jian-gang(钱建刚), WANG Chun(王 纯)1, LI Di(李 荻)1, GUO Bao-lan(郭宝兰)1, SONG Guang-ling(宋光铃)2 1. School of Materials Science...; Abstract: The kinetics of forming process of pulse current anodized film on AZ91D Mg alloy was studied by the voltage-time......
-steady decrease and trend constant. Precursor film forms surrounding the wetting tip when wetting temperature is above 1163K. Formation of precursor film is related to the change of triple line... and reactivity. The kinetic relationship of spreading ratio with spreading time was also investigated. Key words: wetting; interfacial reaction; precursor film CLC number: TG113.26; TG139.8 Document......
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Synergistic Corrosion Inhibition Effect of Molybdate and Phosphate Ions for Anodic Oxidation Film Formed on 2024 Aluminum Alloy王文博1,DONG Peng1,2,3,WANG Haiyun2,程杰2,刘胜利21. College of Electronic... molybdate) on the corrosion resistance of anodic oxidation films on 2024 aluminum alloy, and studied the synergistic effect of two corrosion inhibitors. The corrosion resistance of anodic oxidation film......
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